Hypnotic Sedative Drugs
Hypnotic Sedative Drugs
What mass of chloral hydrate would contain 3.7 g Cl?
Chloral hydrate (C2H3Cl3O2) is a drug formerly used as a sedative and hypnotic. It is the compound used to make "Mickey Finns" in detective stories
What mass of chloral hydrate would contain 3.7 g Cl
Calculate the molecular mass of C2H3Cl3O2; it is 165.4 g/mole.
The molecular mass of 3 chlorine atoms would be 106.4 g/mole.
Therefore, the mass fraction of Cl in C2H3Cl3O2 is 106.4/165.4 = 0.643.
We can write
Mass chloral hydrate * 0.643 = 3.7 g of chlorine; or
Mass chloral hydrate = 3.7 g / 0.643 = 5.8 g.
Moderate Sedation Certification for Nurses
